load_module modules/ngx_http_brotli_static_module.so;

error_log syslog:server=unix:/dev/log,nohostname;
# leave stderr open but minimize duplicate logging to it
error_log stderr emerg;

worker_processes auto;
worker_rlimit_nofile 32768;
worker_shutdown_timeout 1h;

events {
    worker_connections 8192;
}

http {
    root /var/empty;

    include mime.types;
    default_type application/octet-stream;

    charset utf-8;
    charset_types text/css text/javascript text/plain text/xml application/atom+xml;

    sendfile on;
    sendfile_max_chunk 256k;
    tcp_nopush on;
    keepalive_requests 256;
    keepalive_timeout 0;
    server_tokens off;
    msie_padding off;

    client_max_body_size 1k;
    client_body_buffer_size 1k;
    client_header_buffer_size 1k;
    large_client_header_buffers 2 1k;
    http2_chunk_size 4k;

    reset_timedout_connection on;
    client_body_timeout 15s;
    client_header_timeout 15s;
    send_timeout 30s;

    max_ranges 1;

    resolver [::1];
    resolver_timeout 15s;

    http2_max_concurrent_streams 16;
    limit_conn_status 429;
    limit_conn_zone $binary_remote_addr zone=http-limit:10m;
    limit_conn http-limit 128;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256;
    ssl_prefer_server_ciphers on;
    ssl_conf_command Options PrioritizeChaCha;

    ssl_certificate /etc/letsencrypt/live/grapheneos.org/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/grapheneos.org/privkey.pem;

    # maintained by nginx-rotate-session-ticket-keys in noswap tmpfs
    ssl_session_ticket_key session-ticket-keys/4.key;
    ssl_session_ticket_key session-ticket-keys/3.key;
    ssl_session_ticket_key session-ticket-keys/2.key;
    ssl_session_ticket_key session-ticket-keys/1.key;
    ssl_session_timeout 1d;
    ssl_buffer_size 4k;

    log_format main '$connection-$connection_requests $remote_addr $remote_user $ssl_session_reused $ssl_protocol $server_protocol '
        '$host $request_method "$request_uri" $status $request_length $body_bytes_sent/$bytes_sent '
        '$request_time $upstream_connect_time/$upstream_header_time/$upstream_response_time '
        '$upstream_cache_status "$http_referer" "$http_user_agent"';
    access_log syslog:server=unix:/dev/log,nohostname main;
    log_subrequest on;
    log_not_found off;

    gzip_proxied any;
    gzip_vary on;

    if_modified_since before;

    aio threads;
    aio_write on;

    map $uri $preload_resources_uri {
        /articles/grapheneos-servers.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /build.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /faq.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /features.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /index.html ", <[[path|/pixel-7-pro.svg]]>; rel=preload; as=image, <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /install/cli.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /install/index.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /install/web.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /releases.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
        /usage.html ", <[[path|/js/redirect.js]]>; rel=modulepreload; integrity=[[integrity|/js/redirect.js]]";
    }

    server {
        listen 80 default_server backlog=4096 rcvbuf=2048 sndbuf=2048;
        listen [::]:80 default_server backlog=4096 rcvbuf=2048 sndbuf=2048;

        # https://trac.nginx.org/nginx/ticket/2012
        location / {
            return 404;
        }
    }

    server {
        listen 80;
        listen [::]:80;
        server_name grapheneos.org www.grapheneos.org grapheneos.app www.grapheneos.app grapheneos.ca www.grapheneos.ca grapheneos.com www.grapheneos.com grapheneos.dev www.grapheneos.dev grapheneos.foundation www.grapheneos.foundation grapheneos.info www.grapheneos.info grapheneos.net www.grapheneos.net grapheneos.ovh www.grapheneos.ovh grapheneos.page www.grapheneos.page vanadium.app www.vanadium.app;

        location /.well-known/acme-challenge/ {
            return 301 http://0.grapheneos.org$request_uri;
        }

        location / {
            return 301 https://$host$request_uri;
        }
    }

    server {
        listen 80;
        listen [::]:80;
        server_name 0.grapheneos.org;

        location /.well-known/acme-challenge/ {
            root /srv/certbot;
        }

        location / {
            return 301 https://grapheneos.org$request_uri;
        }
    }

    server {
        listen 443 default_server ssl backlog=4096;
        listen [::]:443 default_server ssl backlog=4096;
        http2 on;
        ssl_reject_handshake on;

        # https://trac.nginx.org/nginx/ticket/2012
        location / {
            return 404;
        }
    }

    server {
        listen 443 ssl;
        listen [::]:443 ssl;
        http2 on;
        server_name www.grapheneos.org grapheneos.app www.grapheneos.app grapheneos.ca www.grapheneos.ca grapheneos.com www.grapheneos.com grapheneos.dev www.grapheneos.dev grapheneos.foundation www.grapheneos.foundation grapheneos.info www.grapheneos.info grapheneos.net www.grapheneos.net grapheneos.ovh www.grapheneos.ovh grapheneos.page www.grapheneos.page;

        keepalive_timeout 3m;

        include snippets/security-headers.conf;
        add_header Cross-Origin-Resource-Policy "same-origin" always;

        # https://trac.nginx.org/nginx/ticket/2012
        location / {
            return 301 https://grapheneos.org$request_uri;
        }
    }

    server {
        listen 443 ssl;
        listen [::]:443 ssl;
        http2 on;
        server_name www.vanadium.app;

        keepalive_timeout 3m;

        include snippets/security-headers.conf;
        add_header Cross-Origin-Resource-Policy "same-origin" always;

        # https://trac.nginx.org/nginx/ticket/2012
        location / {
            return 301 https://vanadium.app$request_uri;
        }
    }

    server {
        listen 443 ssl;
        listen [::]:443 ssl;
        http2 on;
        server_name vanadium.app;

        keepalive_timeout 3m;

        include snippets/security-headers.conf;
        add_header Cross-Origin-Resource-Policy "same-origin" always;

        location = / {
            include snippets/security-headers.conf;
            add_header Cache-Control "public, max-age=2592000";
            return 301 https://grapheneos.org/features#vanadium;
        }

        location / {
            return 404;
        }
    }

    server {
        listen 443 ssl;
        listen [::]:443 ssl;
        http2 on;
        server_name grapheneos.org;

        include root_grapheneos.org.conf;
        error_page 403 =404 /404;
        error_page 404 /404;

        keepalive_timeout 3m;

        open_file_cache max=2048 inactive=1d;
        open_file_cache_valid 1d;

        include snippets/security-headers.conf;
        add_header Cross-Origin-Resource-Policy "same-origin" always;
        gzip_static on;
        brotli_static on;

        if ($request_uri ~ ^[^?]*//) {
            rewrite ^(.*)$ $1 permanent;
        }

        location = /, {
            return 301 /;
        }

        location = /security.txt {
            return 301 /.well-known/security.txt;
        }

        location = /bitcoin-address.png {
            return 301 /donate-bitcoin.png;
        }

        location = /bitcoin-donation.png {
            return 301 /donate-bitcoin.png;
        }

        location = /monero-donation.png {
            return 301 /donate-monero.png;
        }

        location = /pdfviewer_privacy_policy {
            return 301 /pdfviewer-privacy-policy;
        }

        # mangled backlinks to /install
        location = /installMinimal {
            return 301 /install/;
        }

        # mangled backlink to /faq
        location = /fa {
            return 301 /faq;
        }

        location = /FAQ {
            return 301 /faq;
        }

        # mangled backlinks to /usage#updates
        location = /updates {
            return 301 /usage#updates;
        }

        location = /web-install {
            return 301 /install/web;
        }

        location = /install-web {
            return 301 /install/web;
        }

        location = /cli/install {
            return 301 /install/cli;
        }

        location = /web/install {
            return 301 /install/web;
        }

        location = /generate_204 {
            return 301 /faq#default-connections;
        }

        # redirect away from the old SVG favicon location
        location = /mask-icon.svg {
            return 301 /favicon.svg;
        }

        location = "/legal/Micay_ Copperhead_ Statement of Defendant and Counterclaim.pdf" {
            return 301 /history/copperheados;
        }

        location = /discord {
            include snippets/security-headers.conf;
            add_header Cache-Control "public, max-age=86400";
            return 301 https://discord.com/invite/grapheneos;
        }

        location = /code-of-conduct {
            include snippets/security-headers.conf;
            add_header Cache-Control "public, max-age=86400";
            return 301 https://discuss.grapheneos.org/d/11-grapheneos-code-of-conduct;
        }

        location = /UBL {
            return 301 /faq#bootloader-locking-setup;
        }

        location = /ubl {
            return 301 /faq#bootloader-locking-setup;
        }

        location = /404 {
            internal;
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            include snippets/preload.conf;
            try_files $uri.html =404;
        }

        location = /allowed_signers {}
        location = /allowed_signers.sig {}
        location = /allowed_signers.asc {}

        location = /manifest.webmanifest {
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, max-age=604800";
        }

        location = /favicon.ico {
            if ($http_accept ~ "image/svg\+xml") {
                rewrite ^ /favicon.svg last;
            }
            include snippets/security-headers.conf;
            # avoid breaking image hotlinking such as https://github.com/TryGhost/Ghost/issues/12880
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Cache-Control "public, max-age=604800";
        }

        location = /favicon.svg {
            include snippets/security-headers.conf;
            # avoid breaking image hotlinking such as https://github.com/TryGhost/Ghost/issues/12880
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Cache-Control "public, max-age=604800";
        }

        location = /bimi.svg {
            include snippets/security-headers.conf;
            # allow https://bimigroup.org/bimi-generator/ to hotlink the image
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Cache-Control "public, max-age=604800";
        }

        location = /.well-known/matrix/client {
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Access-Control-Allow-Origin "*";
            add_header Cache-Control "public, max-age=172800";
            default_type application/json;
        }

        location = /.well-known/matrix/server {
            include snippets/security-headers.conf;
            add_header Cache-Control "public, max-age=172800";
            default_type application/json;
        }

        location = /.well-known/traffic-advice {
            default_type application/trafficadvice+json;
        }

        location = /install/web {
            if ($request_uri ~ \?) {
                rewrite ^(.*)$ $1? permanent;
            }
            include snippets/security-headers-base.conf;
            add_header Content-Security-Policy "default-src 'none'; child-src 'self'; connect-src 'self' https://releases.grapheneos.org/; font-src 'self'; img-src 'self'; manifest-src 'self'; script-src 'self'; style-src 'self'; webrtc 'block'; form-action 'none'; frame-ancestors 'none'; base-uri 'none'" always;
            add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), clipboard-write=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(self), serial=(), speaker-selection=(), sync-xhr=(), xr-spatial-tracking=()" always;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, no-cache";
            include snippets/preload.conf;
            try_files $uri.html =404;
        }

        location ^~ /fonts/ {
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, max-age=31536000, immutable";
            gzip_static off;
            brotli_static off;
        }

        location ~ "/$" {
            if ($request_uri ~ \?) {
                rewrite ^(.*)$ $1? permanent;
            }
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, no-cache";
            include snippets/preload.conf;
            try_files ${uri}index.html @noslash;
        }

        # redirect /path/ to /path if /path.html exists
        location @noslash {
            rewrite ^(.*)/$ $1;
            if (-f $request_filename.html) {
                rewrite ^(.*) $1 permanent;
            }
            return 404;
        }

        location ~ "\.(?:css|js|map|mjs)$" {
            include snippets/security-headers-base.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, max-age=31536000, immutable";
        }

        location ~ "\.svg$" {
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, max-age=31536000, immutable";
        }

        location ~ "\.png$" {
            include snippets/security-headers.conf;
            # avoid breaking image hotlinking such as https://github.com/TryGhost/Ghost/issues/12880
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Cache-Control "public, max-age=31536000";
            gzip_static off;
            brotli_static off;
        }

        location ~ "\.atom$" {
            include snippets/security-headers.conf;
            # Thunderbird uses wrong origin for feeds: https://bugzilla.mozilla.org/show_bug.cgi?id=1698755
            add_header Cross-Origin-Resource-Policy "cross-origin" always;
            add_header Cache-Control "public, max-age=1800";
        }

        location ~ "\.(?:json|txt|xml)$" {
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, max-age=1800";
        }

        location ~ "/index|\.(?:br|gz|html)$" {
            internal;
        }

        location / {
            if ($request_uri ~ \?) {
                rewrite ^(.*)$ $1? permanent;
            }
            include snippets/security-headers.conf;
            add_header Cross-Origin-Resource-Policy "same-origin" always;
            add_header Cache-Control "public, no-cache";
            include snippets/preload.conf;
            try_files $uri.html $uri/ =404;
        }
    }

    server {
        listen unix:/run/nginx/status.sock;

        access_log off;

        location = / {
            stub_status;
        }

        location / {
            return 404;
        }
    }
}